The Golden Master is the latest version of IOS-beta. This is shortly before the software is officially released for users released in the Developer Portal, so developers can focus all their apps on the upcoming release. Where you previously only had to have registered your UDID to the earlier betas of 5 to use IOS, it seems that everyone now can install the Golden Master, if you iDevice suitable for iOS 5. The Golden Master can only be downloaded through Apple's Developer Portal IOS. In addition, the latest iTunes beta required. At the time of writing
is that iTunes 10.5 Beta 9.

The website iCloud.com is freely used by anyone with an iTunes account, which has used icloud.Although the site still speaks of a developer-login, we have succeeded, without a developer account to enter the site. From here it is possible to look at your sync mail, contacts, calendar and iWork files to watch. Also, your iPhone is through Find My iPhone track.

The icloud = functionality is not yet standard in Mac OS X. This will only appear in version 10.7.2, which is expected around October 12. The same applies to the Windows software for icloud.

Although we have only one week removed from icloud's official launch, the cloud service is obviously still in beta. It may happen that you may have against (synchronization) problems increases. Hopefully all these problems are thus addressed to October 12, as icloud officially launched.